3(5+2x)+4 x=1455

To solve the equation 3(5+2x) + 4 = 1455, we will follow these steps:

1. Distribute the 3 to the terms inside the parentheses: 15 + 6x + 4 = 1455

2. Combine like terms on the left side: 19 + 6x = 1455

3. Subtract 19 from both sides: 6x = 1436

4. Divide both sides by 6: x = 239.33

Therefore, the solution to the equation 3(5+2x) + 4 = 1455 is x = 239.33.